AccuFiz Fizeau laser interferometers fit well in confined lab spaces. The compact, lightweight design is extremely rigid for high stability in any orientation or environment.
Order AccuFiz Fizeau interferometers in standard wavelengths from 532 nm through 1.55 µm, with custom wavelengths available. The standard product has apertures from 33 mm to 600 mm and can be mounted horizontally or vertically. 4D’s mature line of product offerings and accessories provides the right options for a wide range of applications and budgets.
The optional 3000 x 3000, high resolution camera captures the highest slopes of any commercial interferometer. With high slope range capability, you can have optical metrology of aspheres, freeform optics and highly aberrated elements.
AccuFiz interferometers also have the highest ITF performance per class of interferometer.
One common shortcoming of the long-coherence laser in Fizeaus is the inability to measure plane parallel surfaces. The AccuFiz D, and the Surface Isolation Source (SIS) option for other AccuFiz interferometers, add the ability to measure plane-parallel optics without coatings or back-surface treatments. It eliminates unwanted second-surface reflections. Quantify shape, optical thickness, transmitted wavefront error, and homogeneity on optics as thin as 300 µm.
100 mm and 150 mm aperture models are provide industry-leading repeatability at 532 or 633 nm wavelengths.
Maximum stability is essential for optical metrology, and these interferometers will operate successfully in any orientation or environment. The AccuFiz Fizeau’s compact, lightweight design is extremely rigid.
No more recalibrating lateral dimensions when you zoom. Only AccuFiz includes Smart Zoom™ to ensure accurate lateral resolution over the entire 1X–10X zoom range.
4D IR Fizeau interferometers provide consistently high performance, quality and value for accurate, repeatable measurement at infrared wavelengths. Laser sources wavelengths from 1.053 µm through 1.55 µm enable measurement of IR components and systems at their functional wavelength, as well as measurement of rough polished optics. Internal optics and accessories to match.
| Configuration | Fizeau interferometer |
| Acquisition | Phase-shifting; optional vibration-insensitive dynamic measurement |
| Source | Internal |
| Wavelength | 632.8 nm or 532 nm |
| Aperture | 100 mm (4 in) and 150 mm (6 in standard); optional to 600 mm (24 in) |
| Camera | 1200 x 1200, or 3000 x 3000 |
| Controls | Remote control focus, zoom, pan, extended source size, measurement |
| Zoom | Continuous 1–10X with pan, calibrated at all zoom settings; 6X optical zoom optional |
| Software | 4Sight™ Focus included |
| Size | 100 mm models: 51.4 cm (20.2 in) long; 150 mm models: 76.2 cm (30 in) long |
| Reflectivities | 1 – 100% |
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